Thanks Rick, it's good to know I'm not missing out on an
amazing feature!
Thanks Colum, that's an idea. Previously, I have just had a
'glossary' topic and used bookmarks but I decided it is too
confusing for our users to have to open a new topic just to use the
glossary. So I thought the tab would be neater. It seems strange to
me that there is no way of linking within it.